Clean Code

Clean code interviews assess readability, maintainability, and how your choices affect teammates—not personal style wars. Good answers connect naming, function size, module boundaries, and error handling to change safety.

Sections cover readability, maintainability, architecture in code (layering, dependency direction, public vs private API, hidden side effects), and quality gates (linters, formatters, static analysis, CI checks).

On interviews: critique a snippet constructively or describe how you keep a module understandable after six months of feature work.

Common pitfalls: clever one-liners, comments that repeat code, god functions, and tools used as substitutes for design judgment.

Checklist:

• Optimize for the next reader, not the compiler.
• Keep public surfaces small and intentional.
• Automate mechanical rules; reserve review for behavior.
• Refactor in small steps with tests.